Finding the Third Proportional to 31,432 and 42,713

Step by Step Solution

1. Step 1: Write the proportion equation
   31,432 : 42,713 = 42,713 : x
2. Step 2: Convert to fraction form
   31,432/42,713 = 42,713/x
3. Step 3: Cross multiply
   31,432x = 42,713 × 42,713
4. Step 4: Simplify right side
   31,432x = 1,824,400,369
5. Step 5: Solve for x
   x = 1,824,400,369/31,432
6. Step 6: Final answer
   x = 58,042.77